{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135771",
    "entityType": "User",
    "nonce": "0x10e64784e0cff6813b183f11285ac8a5aa94459830056280b695adcffefa7327",
    "signature": "0xc437da0bedb602200fbc571c34c2639d2061e663ae33d9a66255b8a4b07d55947f39497f8504b51fec35908e2b6fd15a734f9a59f2e1d1cb4b832559558fea281b",
    "signer": "0x1b2b5973B096C8C3E93BfD5F769cf27295463638",
    "userId": "709797587"
  }
}