Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ed04487ac88c960c97cfd94a93d5a9511eacef46f2bf30a1f174d73f6754f52' 
  AND token = 'Ic8C7v3xwu384fLL7Pa0nPTV3bEouO3iXb9bg6JphYU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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