{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b8ec45cb149255e3ff4936925d98f3c0aaf8054339740fe41096929cd9732b4",
    "signature": "0x0180e4ec62113301048c83fc050bc31d8d1cb2ea9255b86ff0d519b9e3a4a02522f2e8b40c3160df8d810a462ef82d82298650360328a6eb3611c731e842b8e81b",
    "signer": "0x1cBD5D683221775A4DEAdBDF6D31123B76c14993",
    "userId": "8733209"
  }
}