{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaadcafcf3e60b4a4ab84da97bcc200aff967898d3ce1268efa06e9bb3fe6536a",
    "signature": "0xcd998eae86cddd843ed81abc654db9ce5de284b1b46e0dc1523de51ee17acae85eaffd2c1e3d707051904a99cb094525b9a8f97de0befdd6d9580b1292b075481c",
    "signer": "0x1F8d00A05AB04Ea8AFEb3B1C72de612c9fF456bD",
    "userId": "780838336"
  }
}