Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0a13c8a8f85b15b36c801af929c253702a7581a418cb7469943c793dfe4ec39c' 
  AND token = 'WaUuM7YovdfXY/uQcMRvPyVRCGo7nntIhM0xp66bwNw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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