{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287028",
    "entityType": "User",
    "nonce": "0xd27a3c96abc260c25c875e8208dfb1fe3c3695c46a56f7ab41daa3f2123c5d11",
    "signature": "0xb89b6d7acbcc47814623d99f67967166ee3c64349ad198fd3c885d8287e1363c47275b019f00d0b14eca711b8db8abb09c9f3e3ae9d9445879d9a9e14e8f60611c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}