{
  "manageEntity": {
    "action": "Update",
    "entityId": "776507418",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragohtsr62ij7navjqzct27t2yf3yjrlqlio5lojgcrhcf46harbna\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1447940609},{\"type\":\"playlist\",\"playlist_id\":2055145888},{\"type\":\"playlist\",\"playlist_id\":1422462529},{\"type\":\"playlist\",\"playlist_id\":1347681758},{\"type\":\"playlist\",\"playlist_id\":899022822},{\"type\":\"playlist\",\"playlist_id\":1582588292}]}}}",
    "nonce": "0xac8f9481cc6953ecf2164116539350fb01b2b4416cfd5bb42fd2c08741487d08",
    "signature": "0xb6b7de548a355c615aa4832cae41ae3f450e23fe6f14b48d2d319bcf4303f26954717af4f444ab7f6e6c83d41b6811ad18cfe8263271ecf117cdb2e6a5d987f01c",
    "signer": "0x2E995d76F7e344293b46442cBB7211227653eA7c",
    "userId": "776507418"
  }
}