Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41df01c7aae48911883462017c5c44e10889850a3fdd52ff5ac3541f8e1696c3' 
  AND token = 'NTWXluClu0SkT6x/T4tEBW1IK/0aQWGMg1A/BI+bjcA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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