Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '182b222c10833d67a995e19b3cc8e7dae45baffcd6c55a88c820d7e1ff43a824' 
  AND token = 'zp+W2V5iHpgIecPyGJD50/3l/EbsY8KdDHZOUApSy4s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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