Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a098b3b94bd04c235c15ebe693fdbcff3c6c63faf7ac007fbbfdb78fdb24140' 
  AND token = 'v1QAdufNtBi0oruT7qvKemX6XCIn3cT3tDfloJH16Z4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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