Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '076fba957f88ebdab9c189da193b0754ecb723b87ff9ed116051686b488802e8' 
  AND token = '4rx5LtIS5ZlG2YgZ7k4y2RBbm2s697d/cZ2K3Sx2S9o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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