{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x34590be2ee811f9290f21c8f7574c770df9a8606c39c72f411ec35e7ba38e852",
    "signature": "0xe170f21fcaa6d1cb7f50c9c700c16e537425b2e70b292b46eded67ebb42d3ac438401a5105c3ee9a5d7025dc3dcc3c82aa3bd0ae9054c7a0ea14594fefa350f21c",
    "signer": "0x51a3896095A18b62c0162c171a8a67a2B3189b2b",
    "userId": "230584579"
  }
}