{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170716",
    "entityType": "User",
    "nonce": "0x1b06a2a2a60bed59b443c5205f9d23edb77fc6fb0a99d9bb9b032403158e6e1c",
    "signature": "0x87af640f72b162bd26c8f98386635c98ae017debb76e9718836eb999c4331c8b58554a34ea6fa5d4688f580d4d9766afe09774fd131b5c6f352d6641800211301c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}