{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71467",
    "entityType": "User",
    "nonce": "0x6565e4369c1ceba88e37c5b3ee86403457ab30ebe9f245949b4028901e4bc9bd",
    "signature": "0x1a0cc1ba5b3972588f399c3dbb7f01e9d6b93b974a90e54897a3d710aecf6855674107fd386a38613056669456c5552ab004c425f1e5b567642c1da9d4f02ea01c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}