Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e82363f4bdbc1ea6631cfd61ab84b8f3ccf7a67f5907ba9330fc7a6853f1dcc' 
  AND token = 'tMIfyOUyNKI35/nBAE2cYCeWAGhP4rBJLLtWqV/bKd8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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