{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad8a36de0129028b895d372260e4e53a9e52cb1299dd375a3da4e709c80d0c95",
    "signature": "0xa8cf0b75654b96dd89ced9ce0044db32786cf924e4fcd07754c5b9a8c3d8a70c15bd0105dd7fc46f762b0366c79acff89436f44e08bfd8fd41a08f81446f67011c",
    "signer": "0x1BC39B5ec2eB225E3196AbC357D3537c75Aaa206",
    "userId": "322235621"
  }
}