{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x925861485f05e001e5367fd2500c33a1920883cbe476d14ab3153c72fd56876c",
    "signature": "0x3e126d1989c361161fb9f9a0baad82acd8c05f9c1408c6cdbf8001bf6ac86c74573eba4625185c36de1e0832aefad51dd686b888ac78e12627c3924b58adc8f51c",
    "signer": "0x28c59E4618Ef44C82951D8a6d832b5997615D07A",
    "userId": "223794534"
  }
}