Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10a3585856f43d74769cea52d75262fd86aec13460cca4bf86a97a03cc43fe25' 
  AND token = 'Bnic7q6Dud/w5eoZyiulKEm1lfeXRua7d324IUGQezU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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