{
  "manageEntity": {
    "action": "Update",
    "entityId": "930672817",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ab20586d6e3b8fa84f317315654ee3426897ad2e1ff44e33d6257ccd4b0a9f0",
    "signature": "0x8f311ae1d55d80e0bc421f89024d3442055add6631c1186564e909955d9036104876798c6ff73b4635aa20736f2c8bc0422ceb4721d5e13a3b4dd60bc9d871431c",
    "signer": "0x1ff2ec786297b22C00200f465f601b4b7eeEe17d",
    "userId": "930672817"
  }
}