{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2043650",
    "entityType": "User",
    "nonce": "0x251aaf250d60cd5bb2917532bb745ec710ff8df6e98ed6e56d35d732579a36ba",
    "signature": "0xeadd40c7b5d00d612b8ff8807e9092b7a6efd075ab0f65c6e88c690d7d3940610ab1d3c1850b280856a22b13da7d47376b92dc3e1d15cab7b1b0f6ffcb2dcbb81b",
    "signer": "0x11cd379D12F9a2c7BAaE2f74F1914A8c50faF2c3",
    "userId": "387949683"
  }
}