{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297334",
    "entityType": "User",
    "nonce": "0xc20751cbab99559f91433a538bf0b99f9a768b1c5b4c5700bad66f03d34da19d",
    "signature": "0x4ccdbf1435ed7d2d732fd2973859d508238fd340e8fc90fb279e69e218770df02632a1aec8ff88893cebcb198c789f52b11837babdf6d442b4dcbc61eca8ab491c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}