{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97654",
    "entityType": "User",
    "nonce": "0x107baba0d1b710143872f2ea4cd8ac9182e9d55812960a1c79754345f47b90f4",
    "signature": "0xa07172f3d1b204d7dce0dc64af9aa0f4a22b6d5665c394676da497ea8aaf12e65ace9ea161600a0eb68efefd88c5b271bda3202afbf1777d09b9dd6746b976da1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}