{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381478870",
    "entityType": "User",
    "nonce": "0xfbc701c668de9681e3769c5870dfebc3a6f8dc2e5e54a1b74e30a8a0e10cb007",
    "signature": "0xcec679f2763c8db6c7672e4b6b81aaa426dcba6d20693c5682af7a0fce7a99e0767b9cc84a721b702f7f95418684410c4dcf21d838543236da3b56bcf83319411b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}