{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x49f353f01de086c6a969b016804f3cc71e5b8d9182f83bfd3dd973587f61063a",
    "signature": "0x3eee5588cf6ca0ec227579934b00272aedae0f148fc4bcb59f7f697dec4db056383b8e7c905576b64a04d95634aabd64e6bfa5e0b21ac728d701924b6a37089e1b",
    "signer": "0xFa074f848Ca977aCBc270CBbfd4c375c210eB1cA",
    "userId": "939103135"
  }
}