Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '97d6eb9feb6b6cdc1c75e527b779a4268fa26501583aebab114d29aa87102252' 
  AND token = 'Tdm0hIG69L935g6R82Sp+zCeJFs+iUa1LQae82th/fA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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