{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954228",
    "entityType": "User",
    "nonce": "0x4f53ba6f7fd20288e60152517858e7fd6524c1f66deddf9d18ac251309062ca0",
    "signature": "0x95bf5435c0f87065f1cc42e4f53186a1be205b21fa16e2be7fd7578e3b7cf25c4c835e2c99f6d69f6f21dbc2576cf75e46c18706bd6f5970affe6d8ccdb0d3d81c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}