{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08dde5cb849c05eca4414c42eff6b31d4153628b43d71bc2c717d47c56b185f3",
    "signature": "0xd9770a3c1ed5bcf4a4da2c8d9a8e38a43dfb4f0b26cec2ee84b8972c8e9f4353574775f210719248ed3eff85091bfb09b69afe89d18d611b68fde04c9d1f1b1e1b",
    "signer": "0x30080BBc6495982996CfFd09093B94af98A1Ad76",
    "userId": "568501979"
  }
}