Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1a8c78fb5646c843ca227c478d331c59f845545ffd222f831aa0bcf4ee9903ab' 
  AND token = 'YM4ZiAWFM37LPMNZWNQn0b7kjnavMADxXf7ivG2FzOs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00055

JSON explain

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