{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389958",
    "entityType": "User",
    "nonce": "0xf4b420d88dbd6b701c342d734c117b5d717ce61722c95ce6cc5295d322d4268a",
    "signature": "0xa63d04a55885f36a11824de1f3657bc29314d48255a33197660940cd30f0f4c640a2c85f4a26eb14ba4fdae58d5162a94e5435fd6560323445e40c3364ad80a61b",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}