{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x803e4b395ac36142d43b215b4308a6a80d8a14795e69c4796b75142ec47954d2",
    "signature": "0x53a274ae7a595a1cc4f1b671b417657c27edc5a0aafba08f62cde163bbeebf1d7c3f4c13b4bb12b27cc6c0ab37d8d40776453330200b4768b688c51654edb3f51b",
    "signer": "0xE22639FD840080b20889373FEa6060B4757eB9c1",
    "userId": "274627911"
  }
}