{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211103",
    "entityType": "User",
    "nonce": "0x7b614d9766a253ccdca66d78e551aecc95f744d791e4da2f8238fc6c79cbd5fb",
    "signature": "0xcf12874712227b9faf41fd1c4eac9b605f4d9380b0156ff63a8f8454c0035f4144e4781b90c82f3a3325fe4fd53773b19795e16a8814f2837aecbebefa0ea2531b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}