{
  "manageEntity": {
    "action": "Update",
    "entityId": "770353968",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracoyrx6kqggkmweu2do3nceenourtk7ui3k6xmgqly5uxlrmmp54q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1249587791}]}}}",
    "nonce": "0x0f664506d6993d3ab075b776987ef794e481f9c28d9b44c6ba181949503267bf",
    "signature": "0x593311c18658d06e365692845831f14fda0109da30b139547ee6bab497d72fe37135b5a4b4905326cd0cfa844dcf7362b7776f80b1e80b6d7a09f7ac7718d9c91b",
    "signer": "0x782E3b7D4B0edFEA3235CbACf99e07525B2e891c",
    "userId": "770353968"
  }
}