{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "722965910",
    "entityType": "User",
    "nonce": "0xe3736e393055bb47f38434ba8c4c09d8538635a7a9e9f40a38c3f69e60f67d58",
    "signature": "0x1d3a8e8f316519472f238640cede17e7a6caac8edc8a3c7e02575981364a7d8a5c560967fe16d916ed8e6cb00b0e207ccc8bd2621326a8fd5a4fcb0287fae10c1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}