{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "253360517",
    "entityType": "User",
    "nonce": "0xe80002ad53d61a85e3f9b35f47af23609904f90b4a0e104071de4f010feb4921",
    "signature": "0x1e973ee81ec2f5f75055e42aa6fd4fb666c8b65e6be8ffa49d3c3ed06ef90f46212d38aa74ac2d11034cfbfc111c8e677f41cf046e275b5a49755bc6249533881c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}