{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "747669405",
    "entityType": "User",
    "nonce": "0xfdc70d0a57f9cc00fda2d2806789110c5d9e1d7592dba9e67123aa568adb8e00",
    "signature": "0x45283eb788d7c2ffb07e806ac961a3ecd92ff6ecef95f43e90fe59c7b4e5204274fd855dc85e4764593ab194c146f486dd4790e0e6eb009b6fa900c5cd8354e41c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}