{
  "manageEntity": {
    "action": "Update",
    "entityId": "684026832",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf15a4541422ab7c35ad7da6b90ac13314045aa6e2eae05a939d49efd07d29598",
    "signature": "0x5cb810314b006ffeeb2a230c1494e3acb592354862674a05c27224db78def967366d0d37d070e1cf351f2dfc7f22cfccb637c9d6c0edd24b4502044806e5abda1b",
    "signer": "0xc7ea8458d0f1B039aB1943C3Aa7889a9d40e060D",
    "userId": "684026832"
  }
}