Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b32dbf03e9d1a6991a853d19c957c771aa502410b2d158f3786fdd58baba60f4' 
  AND token = '93i7rj8W0p2aPU394o8cSY7DHCShl6/W4/cngdmSaYo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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