{
  "manageEntity": {
    "action": "Update",
    "entityId": "881880880",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe681a8b671dbaa4dd7645ad1511009b103d58ffd075d48751e7e0a055208814e",
    "signature": "0xe7bde60700f33d03abbd09167d9ed6352c4966c69f5239134f139ecf8ff3e7b9504de0a5f3a4fe88044bfb5eef8a2bbdbc37ba5943d562303874dc943cce41c31c",
    "signer": "0xdB859da145eAc5f173b5a68ee5F22434899fe416",
    "userId": "881880880"
  }
}