{
  "manageEntity": {
    "action": "Update",
    "entityId": "419478668",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3cb8026bd10aa1da130ca06f026609ce2672dcfa3f2e81aff46f5e661249a117",
    "signature": "0x73742644c7cc06d11f6601b664bf7fc078bf76f1b078684b2de93ca1d7b3ffc444978c1268ad8e3b3d2c1c689cd9021c7ea4d4bcf276a5ba3a7c6ba03649e4441c",
    "signer": "0x7CB6Cff4eBBF3a50360Db8fFAa2E97Bce567E850",
    "userId": "419478668"
  }
}