Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0541b31e19249ee6b8adcb51aa7b7ed75de9b7821d967f8be18e4ce2036bad25' 
  AND token = '/wDOpwW896iXAL/KW1vAsiAqGsfP4yB/cRPJPhURboM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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