{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0xc7fce40eaa39e0fba36ff8a53ba9fb6d323df149d210ae2f958e3b376089f1d4",
    "signature": "0xf557e36478f429b51e411c3f9d36ec620942b4762a4136a64e067e4662f826020e752d036cf348b97033a9dbbea9c94043e7b17f6610db0b4e8115720810f4341c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}