{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91560",
    "entityType": "User",
    "nonce": "0x1510d716ebd78396fd205ab4c7252951fa1ffdb64a11d6f108fb76d9966de599",
    "signature": "0x4ae557f5bfb00ac8529c4b50668b9db3acbb06c5d52bc36d1ce26fc432e3389302aaf6c94e8335081b34c27aa327a67456a3121bf488be5a4740844aa04f0ed51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}