{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa685d0aaf715507633f4e7fa46239b62dae578de7aa676559ca005dddb8073f4",
    "signature": "0x3ad535637dd16e543e41e2a4b5f44363ef7482585a480e5f0b7a3d5e736328d27a2db08e2a06c0255411354fc1271a560c247fce9e1ac7954b1bf0523de6b54f1b",
    "signer": "0xd9e965D34dbE54B945Bab2856092CC219657d5dE",
    "userId": "424828409"
  }
}