Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4436f0168600d3da8c1278d5900c793df8aad0b0f2feecd56c698f57b14a9bc9' 
  AND token = 'vy0vZSAwb8pxjkD/Evwioxn4AHl+j3gVipQvG3Iar4Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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