Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f152179564a92dca025fc396d69dbf2185366038c3aa84871bd965cecf34643e' 
  AND token = 'oujLFass6ulum8KB+OxVJnO7himayROr30YNElW97i0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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