{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x446ccc0767406d722ebfa56810b2414bee80bb40e791ae60b4bcfa21317a2aaf",
    "signature": "0x9770af7e4384acb432dce4ee2b433b5f4ed551db0d4c69e1a3f8589de8b3a9cd75627359b3831f8fc1470bcd82eef7a450755ce516d26932a2993631fbe525c41c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}