{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "877304859",
    "entityType": "User",
    "nonce": "0x9150268b928ead95b0a5a85e31263d9f128c004e7ce91120f22391ae313c8234",
    "signature": "0xfdf4fb6a01940a2282dd10cfd845abebcb73547e0d6b4a480a91665434ccbf327e8ec104273c8f23b4e234262ed3edbcdab3dfdb1b367e31e86f44b1fbf389d21c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}