{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1677083",
    "entityType": "User",
    "nonce": "0x8da5d6ca63581d0643fd5559982b6dac62644eaa42aef16844218b1aa73e7e74",
    "signature": "0xb616d5457a5d892b1d7f1d6eca65ea4dbba1ba7568b6b5b815fff1e2f5fb219561835b1108fb142183c02138c347851c66cc062e61bd58893915beb73e2acdfe1c",
    "signer": "0x7951f176B5389b0d3a6822d7e0F9286feA14ee7a",
    "userId": "867251596"
  }
}