{
  "manageEntity": {
    "action": "Update",
    "entityId": "966009905",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x810a41e721e08498cb9a941221c1adc1664a7072fd64136a1469b7ed92ca283c",
    "signature": "0x8a048e767ef1ff273359e3e86064fe2b6044e0a27296ccfdf0013b82d0d5fa71605cfd9e7bacc6cfbcaa033d8f520d55ce43c86bbac9fd73dbe51ac2138f94cd1b",
    "signer": "0x68A3190796D0F706481cf47d3f837709637ef0fA",
    "userId": "966009905"
  }
}