{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948584098",
    "entityType": "User",
    "nonce": "0x0102d0466528a4601548fc76e8f964bb138e4b737bbf0c0e0a580d2b8e7f2aa1",
    "signature": "0xab0a9a3808739bf1d44ba79d7462f4bc82419c0a842ad946dd3e05261b45103109d7679c3b55d5b4d2de37a1cba65d806d762b2697708dafeb08fe6a49d01e991c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}