{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0xb468d0639b639a1d8cdfefc73ba4d3a4d0ffe025afe0bdf84d0ee763d7804c0b",
    "signature": "0x151405a893c515fd253ace854fe7cab0378591f4cc071c64ea2d67b31b4999fb5a440ad0b997f314fe61535e6ac5b9c8aefe7de1733c6fad8ab4b712cce096171b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}