{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "474113241",
    "entityType": "User",
    "nonce": "0x756cc875b7deb96626f2092d1f85b422df82aa53eebe7dec4090a9f92e0d4590",
    "signature": "0x390e31dd8e57a40ccb427efe6467e72fdb15e2c3f4a5f1ffb6a4d3308d1118ea08eec88fcc7f250fa560b7d7623d2651d7339a5a7d366431d278033c47798efc1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}