{
  "manageEntity": {
    "action": "Update",
    "entityId": "922884280",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f7b721609da3beb7abf373f373269fb35530093afd07c96fa06d6be2c62495b",
    "signature": "0x115dc428db1dbf036e250a3defbaa7c095f949f65418ef834b0a3c62f6b46ca24249d734698a048731f8b03f89d907d8764e4b7310590030cc359e9630765cb61b",
    "signer": "0xF4b3f4080E93318aE7dcC7c74C79fcC9336D9960",
    "userId": "922884280"
  }
}