{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf384cba768f1d4b7133cedb344472ced4e8fd7cd210a44c9ae7fe03cd6e2f511",
    "signature": "0x6498a0c2a3cea69e7c21b9c36b91fbf417d56f2c773ad5cb0225684cffa641e64ddb853a3e5d45346ef3849596a9979167819afeb2a307a817a734565fd2b0e41b",
    "signer": "0xCA0739Ef37A59E2f358aC36F1EDac14823F65C46",
    "userId": "367835541"
  }
}