{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf427a0d669b4f936d69e4ee59a18e0888cdc875c5ab4d4dfc37e88ba224514a",
    "signature": "0x67ebd69badf1648c3191a111ef536f5ac4a38662b523c0d5adfc38b4aed9391264ffb664cec2ad0a19b6f368869d76bed7b44d45ef873fd445cecdf36637eb891b",
    "signer": "0xdCf33EBB5e7b84FCB16F97A7F4526df60c9fa632",
    "userId": "455914777"
  }
}