{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc4d86e0cbc253be347a4059d9f2a4625b8aeb0e16cee7aa659a619fc3711edb3",
    "signature": "0xcc06d115c030932440cd1a1521633fbc2ef721417f5004442f0825cbad544ebc6a185822c91622671b4d4e568290b2aa3d1e7c5f51e9574e29e71c4919b7d1731c",
    "signer": "0xc5809dd2451c3AF574bbF8Fe0e64acB424dC5B0e",
    "userId": "267313491"
  }
}