{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xee4b1a33f4cd92a591c644626ace6e028bc839edd79a19cadfe4224b7ae3790d",
    "signature": "0xa09bb51286965aecb42ae81db496b48ad18ba731eab0c686871267f0dc41337340be04ff48d2805a9da911a0e09a5f9927927d773fefdc53526e45ab6f74e7171c",
    "signer": "0xea79EEd60D97517387a63Acc5fd3BeE2227F1658",
    "userId": "220230236"
  }
}