{
  "manageEntity": {
    "action": "Update",
    "entityId": "56423685",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8597fa0438b8cfef299bcbd10d54ff29650ff2ceb535398276bd1194aed39e8f",
    "signature": "0x8a8f799a70e25c98e48e0edb604c985e48781b03dd1c5e6ecc5528ae7709943f4974d0ff0b36cab64349dc3fb9c5c3c11223b463ac671def3bddd31f80be68351b",
    "signer": "0x065d3b37A2163EEd1Baf817F23C541eE19409F7E",
    "userId": "56423685"
  }
}