{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018225",
    "entityType": "User",
    "nonce": "0xd434ce8573047b7d541d951ea20c8d6a258c85c4fc7e0ceae3720b7eff669386",
    "signature": "0xf2f009fec1925854438f67a6edb6fac03bf76bc8d98f2e598f8b7b73822d2ce72c12730390ffae3462e24d58b90479ec94c2f0153b84aadb1176b833b74f82661c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}