Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8b5d6ab3b86fba2cf3e0d16ea3fda3ca95e0127f8851fe790ecff319256ed001' 
  AND token = 'yzck7O30IP8eTIguNo0HSXIJcpGGeanG7c4TAs9mulU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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