Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '59ad41a464b0e6461ef3562b23333b6e3f5a3648702e0df9751f9db306f9421e' 
  AND token = 'xTTTWbYCPJ07EHz/ywIWYkjsu/NpYqpdlus/Hl5HoD8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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