Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8a68db971bf1b06e3f0459299baa504741f705922f0e684c5be2e969538f8cfe' 
  AND token = 'Ft87dxaiXPYPyAbdvtN6yVet+AdvYLr5yayA/8y9Xdg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}