{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74214",
    "entityType": "User",
    "nonce": "0x720f6b0f91dbf4acc58f191ead1d6ea6a627d9980a2783b4a6dafbbb762df0fd",
    "signature": "0x7970ee206d6590d61864c435a5bb639450fee3e96350ce4604f17e643944dd3e6d0ebc455c93f04f3cbce4ec030d2661e355bfb4c1f7ae8fd967b198f7abb8b11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}