{
  "manageEntity": {
    "action": "Update",
    "entityId": "517330077",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x912d6197e0d391abef29ab46b533a1df551b1b65b185ff4023e337831d9b693b",
    "signature": "0x6dbe2c11c79da5de9c7c176652c9a2194aa39f5e0245d557a904347322bc3b1122982db9fb96775498ca8418680ee832ef3435cb7dd9bde5f4b69514856acb6f1c",
    "signer": "0xCcceB09F3A94D5d403Afc7f2Eaae8D241f89E83b",
    "userId": "517330077"
  }
}