{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175319",
    "entityType": "User",
    "nonce": "0x6e1a925667c313264538d50b044ba52e2c085be0abe2a3c998b70fb90b27f1e8",
    "signature": "0x38c8a39e6cbc42b7f8577966c1d4bb8202af1518b5bcde63baa89a325e6438e01aefcd3b4c1cc2e47b1530ba65137f45672f76f63dbfb18e91e688980637593d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}