{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x716956da0e8572ebf60726bca7b748be099654d4dd75e81df5e414c926d5b3e7",
    "signature": "0xf65bc08d6b31fb4486af0b5eaf7c274881f7dc8b611eca77811b8822cbbe5e117715127246d543e1f39fee46ab9a17a9ae6b3739e0fca146e5a99abe4b0d03821b",
    "signer": "0x4c84Df6067D8340E2D5cBD3b122eC9995f52013C",
    "userId": "487670016"
  }
}