{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59c39cd3e5038cd1abc651661528baab33031861a53a0549b7d102291f4e0fc0",
    "signature": "0xe71c2e657458bc8a22ce1971d1649357e6109829a692b40027ce73e61889c37873414e75a4ac674b25219443aeb18a8505c5ab7cffbf25166988954b4ba147831c",
    "signer": "0xD0530d6f7037FEEc029d50B71559a6C4353661AF",
    "userId": "411766507"
  }
}