{
  "manageEntity": {
    "action": "Update",
    "entityId": "731388658",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2goquua5c5i3ajayxvzul5wbb34kv4wtyrjmri6b6r3hx6h4bm3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":147288428}]}}}",
    "nonce": "0x1e52c8c7a23cda011b2df79f5443d69b353102433eb332848355cbe5a14aed22",
    "signature": "0x1d98142a89e8f4aaa5074febd74d4d9cb39e9a76c024e1c1d477d79cfbeb3cb74faef3eb6dc8631ebdfe202b2941c8b72bef0d3154b943f8111321acd4d0a3751c",
    "signer": "0x0Bb059fe8308cB4D6cDD7d79E6b2AE72b3b9DD2c",
    "userId": "731388658"
  }
}