{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201510",
    "entityType": "User",
    "nonce": "0x5f787b76e70373190d921e26dde36f67339162b808fb7a792d39d236e43e569b",
    "signature": "0x7052bcf8b6a8bbf420c6ee63a607aa72d8ee9b4761785e08b6b15342ddd2774b5fbe9a235aff0393e2b654f9a28f5908c01c3adaa6dd67a9effded974cf513ca1c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}