{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16971",
    "entityType": "User",
    "nonce": "0xf7c7ceeeaf0ce1029a32bdcc647dfe880c535c5b0f441280fae25e40565ec2bf",
    "signature": "0x0bac81ddfc609cf55ad24e53a1aaab888ae6cd7edc8af11774be08da0867031661c8f436ddc047a3e6bec8210ddb9cee334f2535027e6dbc261a9955fa311a3e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}