{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377105",
    "entityType": "User",
    "nonce": "0x67448215d44dd72fb92d2ed6da1ebc20f5f2621806d28f9eb52da212ce465578",
    "signature": "0x30741f3406e89d2d25bde78838c53cc3fc3a3dfe8b889c57331560abbea2ccb94aff326c24abd790380581384c5a6495748051ec81cb4b41a0a49cda359514d21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}