{
  "manageEntity": {
    "action": "Update",
    "entityId": "224487861",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4fe86f130084aa0608c6e882dadab32ada5768313cd461d5dec7fa375c21e8f2",
    "signature": "0x14eb38f66183deb2802664bc2156223bea401031e1e58df3fbf678091a58f7184982cbc68b0e561c656dc24b07442d75d380ef86f4ce3daebc7ea96cf19794d81b",
    "signer": "0xec083a3c9f7e847f8676C7CAF29E433702FB2CA5",
    "userId": "224487861"
  }
}