{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x0b9e029d0382d0722673ddb05203ebdc07da8b41a95479a4a48580c543e1096d",
    "signature": "0x2e92d64949c2b11f1d6094c3d01ae2e01626b42241504d8828539c8dd02a2a2c3f40e1d3e41b1e049ce2977d1ff3c32e27c0aed3d657278bebcaf7411c227d4f1c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}