{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889569599",
    "entityType": "User",
    "nonce": "0xf6f96401aab26292e819e617faab61f4142a87b44ea4f1f861c0a0d665903d8b",
    "signature": "0x490b63a48e487289aee479e22d6342b74157a08115ee224ea38b3db3272f9c4772e12403391a0dee1383b165328c1d8a9f39702abbd6206acf5189aa2277ac141b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}