{
  "manageEntity": {
    "action": "Update",
    "entityId": "531366111",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x051a3243b2c2a0b3a284da16aa34bb49cb2b414e7912d261cc67161a5a9c5a97",
    "signature": "0x5c31b8cd57da0ccd5c811e8eb9050c06f7d62d1203b4d9cd67c293d98ec201870708d3a89c9215866c508f4cbedfd2be3d5d8b77312464f43caeb9edd2459f701c",
    "signer": "0xd20e05DF5b8cb1e52cE88D75a2f412Bb8a61930C",
    "userId": "531366111"
  }
}