{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141000",
    "entityType": "User",
    "nonce": "0xdd815e6bafc2b2633e398bdcef4bcc36f4bdb1ea51e8d161c099715acac2b9a4",
    "signature": "0xcc77b327d2ab2072cda8500b7a71a4bc23ff97ee340e9d26a85d0bafed53db9224606df27e212e552623f6065be4d7253376a9f8e0783edae5e555d6ef44482a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}