Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5602e8a7f15d8307a44db37a55395abc8dbf5f70553c418e367bedc4751a8825' 
  AND token = 'OFDxmGPpSB1rn1ZZPpd426NroQM3/TwbJMU48xyq7ic=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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