Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '17dbf05da261566ec40ba044e471ab3a27d9e3de5a94a3c5f0bff88be19c96da' 
  AND token = 'SHsqdgvFDGRbJhg0SgN4xH3d1w40pc69GPoSxLR40M4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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