{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x92a7441a3e62c32fe4fec84ad796ba8a2988d3f7a9f31ac2dd9f434d660ea630",
    "signature": "0x097c33b125dde05babe8708c1481319b9fafdb51a3c844dce72e28f4cf96b2e1573d11fe610ee84e56dcb747d4ab2912d0b733223aa26cad4b93dc1f912b09d71b",
    "signer": "0xc449b6C08de22E15C670cb8a7d87C4F01eDD7424",
    "userId": "308059262"
  }
}