{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406507621",
    "entityType": "User",
    "nonce": "0x55e36c310784f72f53d1449a5067ad90bd5124ebb9aed2d0b5ba6c522a9aa1eb",
    "signature": "0x502ec96bea341095269fc63ef97b6b261341fdd24457977106972399c143f66e2601a75cc2449af43aebde88aab88b2d31c48f1f000dd153a5bbd0d4ab1d372c1b",
    "signer": "0x71114Ff581aA73d1F4b6429D7713914f10e8e90B",
    "userId": "894513731"
  }
}