{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261927",
    "entityType": "User",
    "nonce": "0x3a2af7a438bccc15b8decca95d6fd54ba07404bdebecf9ff49f750820c02f4f0",
    "signature": "0xaca174263b5938f35d319a6cfe013e1660b92ea7bf467d632b730bb6af5d3a50414978088b2fa6a52966ac6ee176a18b915da924746bb79496346d02413896301b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}