{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51608",
    "entityType": "User",
    "nonce": "0xcd1f099076eea898f07b6b47bc36a08fa5f857c72dffc9f53e5a9a6f109a3c7b",
    "signature": "0xa40abc61b1e00b2f9696dd89087e03f190144787eef334e46fdb306d7e24c3a71b61ea0a635afc4d20fc947d487be84aa9ecec99c59fcbd7a98d3794d44c37191b",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}