Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fee486bca3bd24aa04b804ab6b4825b96d4acf747338ea1f7c2ba972183feb55' 
  AND token = 'Nf9wCdDjoJV3Pje2q7jx8TRWFyx48l+Pu6qj46nKmPs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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