{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x2202165e6a931830f58fa704ddbbbe0892d9be68e21fbbc9147939bb88c07412",
    "signature": "0x80d0c4fadd3ab58c9bf368be1009102fff1910c678d6d32c550b714471a507d66d0553bc1a5ff1cf5ae75066c75efa5c83a8a515dc7ef77c6da3a8ccd8ac7f901c",
    "signer": "0x87efcD88D538e6929D6a41A228B240bd0E225698",
    "userId": "849303995"
  }
}