{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370089",
    "entityType": "User",
    "nonce": "0x2abba6e20f96d12d020002c93e50a949ae008d403bd10d7854058e8b1b464bc4",
    "signature": "0x5c84ca36740028d04acf5983e83cf970f084d9d7335082d6178b5469ecdc94251e8a51b8230c7bfdff45acea8062aa7f74ca056f3d7984e953c30ed312c652781b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}