{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xd4419b5bc22da99f275c42c8b5c5d903a16b69ebb75293b37768959b7bd8e931",
    "signature": "0xe38c6dd63c25fdbc30d36db3e0e014962a5627e3ddc91c0f5496acec88941187152c7ca763ec489cd983f83026f6c2a5736d568f65f657ffc968ff686afef59e1b",
    "signer": "0x1CF1F07ECEB2f13D54412EDc889E296e81689c8C",
    "userId": "894558437"
  }
}