{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06cb970e1584667c4e1dfb0f6f3ef8d9904bce0806d7dea387ff1a5464b677b3",
    "signature": "0x1ab7a396e5fd7c65c9cd1ad103416356e909d965a09da616347fd6c8abe4dcc30544d7b6f67a1f751ca3df38eb5a6c38c0c60198a1bc9ede55d052e3b912e1671c",
    "signer": "0x9df51FBCE788c3885Bd9f46979B1bbDA8f8Db2A1",
    "userId": "489311557"
  }
}