{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2004936",
    "entityType": "User",
    "nonce": "0xff99510eeb421bd9748c4c2c832c5a05d1ac8b0796a3ed949f52a206b6d2e1bc",
    "signature": "0xf68847b8062c2564b465ebf801aa143cf697c23ed488b2a0c8c7ea6aa1162a1f1a6dfda2bfd4ebe4adc5660624fdcaca9d81f52e4f0b527921935c699add124c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}