Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '35c3f101b26b5bb1ca05ef779f281fa38293b960fefb49dad0d98a2db287227e' 
  AND token = 's+W7shBMRXG9Up0zI0l/ZT8p4WaBS7CV1Vs+7ilA5Ko=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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