{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "999692142",
    "entityType": "User",
    "nonce": "0x0c5f07239a8280df17059708d2f25aa5728e7560e81f1b74079fb9d72d8967d5",
    "signature": "0x796d900c3e4b9ebfb4c8190f7084d0d03078384964b00ccf39e1fb60ee1c39a40f194d92c3ea385ef38ed95eccf48a05ef2097636198966e2255787f50e7808e1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}