{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42686",
    "entityType": "User",
    "nonce": "0x2d1ff1e8f157a424acbd715a3cf1a09e73db5f3f65e0f01b7cfecec935b220aa",
    "signature": "0xe4254e7a11397848a0573c2399b66522ff8b48266d4fe2ad1edc8ee616f5d2411f08cef5af667ee73a2ad295b1338cbdf382f3bdbb8d089269e77920886fe5581c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}