Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32399701958a4c0868ec232ebb0d70cddcce409a6bff72ffa6d86b54cf65926e' 
  AND token = '5GPXbccJPAxmikhQuotf6WqA0jBYqX3XM72Scws1kPI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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