Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '006f5a5e5ebecaf89730de6513a8628c732a5662fdbe5785cd1e596838b3fab3' 
  AND token = '5ccqNuFr4ZBBaSCAT2QcXbGt4qPlhdwt0rhGv97KZss=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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