{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x177b00ee5cf8784ac3084bd4b1e5ca13860b1d34ef824c9a8178b7a558339367",
    "signature": "0x548925a690684b2085090960271a51d9b6612402c868e13b544cde7e37c312af7e6bf91f5be0e46fc632c08347a0bd447061aa48e6c3cf6d28982136814e2c5f1c",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}