{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0xe0b0766e0366c010efa097a24e00910606f68bf8e6b809b271ef16625e7930ce",
    "signature": "0x919bf47fb94012de08583c0468fa6e0329a4754f389e01a7048b18e9122057fd453e737aa2d985120de2e3feb0cf16bd4e5a8c06ce63fb9024d6de7035a2b8ae1c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}