{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5bbe3f3522e50bd961d4e2d2a3b4c0828a57e02340951f0faa0d6f167f7c537",
    "signature": "0xe9dc88fab9e855c0b7da6f7b608975977ba87729c653c5faae7aea54c44136721d1752c1e441f8b742d76f01292a49275d08e94b7e7a6a269d3fac99103d77401c",
    "signer": "0xD34756eC6b469Bd615646b7656431C0FC538c012",
    "userId": "369264962"
  }
}