{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4cab517711dae47a78b9ad2c1d1736285ba0023fe3616ed5f5812fa5742ce1bc",
    "signature": "0xa0df9e2cb78c325b45639e8e714b37c0a63f43295ed41e95421197e33420c9bb7c35bd6e4375f9b17ba0baa86d1b3635eb966d6e2c1675e7912c8f4af59823361c",
    "signer": "0xCc67E91B413f58ae6501a26D8361999Be8558Fc2",
    "userId": "114193020"
  }
}