Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e04780331acd1aecc624536d616a463beaec6ffe9824d462f8ffa8ac6d0acd9a' 
  AND token = 'liWxa0IK4fMKRc4K4+yjsO+TsTbgXf64ub39TXBNONw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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