Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '1a2142f59532fb145bc3656eecbb2dfec6ade769b1cb2c7de71e83d6c041684a' 
  AND token = 'vGSotI5tSqgFR/E04rLz5mW1gxIba0tG7Hsa0Mn/30o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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