{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0x071168129dfa94696ad94e2fdcec71c3c27d61b3642632f7c5a1800822de3ff7",
    "signature": "0xd4cfe509f2084dfb487490383ae48cb1ccc9d93087cc55a4ec6ac27989e4b84744d10048804ed466db61a05a5cfae00bab22f3b1e84e512835a9b91679a67ba81b",
    "signer": "0x12D25A7a19Fe8130A1f3de655f59f1ac38Fe29fB",
    "userId": "566281511"
  }
}