{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0xb1807d33a55b10bae1213fe7a44edca35d6a0216abbdea5c8f747b64d00d79da",
    "signature": "0xd7962e5eb4ba094a26816caf937298a54a8ca7580b0f49a2ea66c3fd9467c60d540cd7f79d150c3227e6bb8e003364f90286292d93aa15250003386dbf3023ed1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}