Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7ce59c8d9ab4527b5f50943cd0227fe2bdceda421b2b92ac3efcb10b365ac7bc' 
  AND token = '92Jh4aq8VkFsLnxzGSj1TkCcoM0dgHv7W4dJDTHdxKk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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