Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '699eb68d25a7a5ae482da59a8d18e909e8466f47e7c19de7152b3f6373080872' 
  AND token = 'AVdFjkppTE7vkj7HUh+dXYPeROmkI729zy6JB8qcVWE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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