{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0x9d226a5affd14890ef9fc4635a50a1480481c1664f6e10d5149bc805a71d328b",
    "signature": "0x1f8c0654f549d3ca182d4449b7e6972b3346174b44faf905a1811462f9c959eb5dc2d78b1ab49cd1e782247832f4e87a5e4cff2515ecdbaac57f14ece918ea4e1b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}