{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "259380",
    "entityType": "User",
    "nonce": "0x71abdc101ca1a390ddf0d301dcd19b2b056c5d1a77150dbeb9bfda618c725590",
    "signature": "0xd661cb5b44402877f8bbaa084d55a328748cda7ceccf932aba67da4b5264a07165c611d5121ef9e29dc0c20c24143b44fe2abdf85375a94d32221fb980a97b871b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}