{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x2fcaece9dab5e8587718926953d46a23442673e7a8b6936e94ebc3f203d613ff",
    "signature": "0x8a83bb9a6404573434309850b81ec159d85007c63ba24586de5d0a77fae64a0b50ed0989884c6473f105fb538050d164aaa3a2dd5f90d5fa555b60b4212df0281b",
    "signer": "0xcdc0734c3fb9B0268b57E3D7c349CDa461D3eE6f",
    "userId": "29056"
  }
}