Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44f6521a0a6c39fe7e0aeae8facf21b620304995e0610e258d7ffa6cdd673963' 
  AND token = 'umcIkPpBXcLJauwRJCuWChyU+/xikKuMTVVTXC8OqMA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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