{
  "manageEntity": {
    "action": "Update",
    "entityId": "358749967",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe42f8bc5ba0b8faff864ddb7480536a7314809eee448bfa58d7a46f7b7a110c9",
    "signature": "0xd907ce7fd78567e00dce5d00b2d281419a0e95c85186328587e3fa6280f0f58822f30ed8b83bada0de4bbe52163044c001ad6ed607caee156c1742c34eda92001b",
    "signer": "0x01313939c9DAC9b7Cf4f8876b3BDe6507A6E3Af5",
    "userId": "358749967"
  }
}