Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cbbc8909347018c8520fea82b22a7f11ea7147c13a369dfa28283bd9b85c344e' 
  AND token = 'ncMxXa7cos1kh4QL6jfr6hS9UD45LIeuMMEHWFQ+M8o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00056

JSON explain

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