Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1767cd98e1ce3749cc47008c7e799a4db8ab07f44ba514e8d95eeec2a7e5292d' 
  AND token = '8VUVTJJMio8I7Xy7UZVM0Lb7Qk6ScuB38GkZM77/nrA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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