Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aed42db01475237041a08416ac10f20299104c529280648b0ce75871d7566887' 
  AND token = '3eNQCgl6t+98qMYwWkAYhLUv6upuUy8SYO/Qkw5g2ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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