{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "673116",
    "entityType": "User",
    "nonce": "0xc62906fb4deb08476219b9ef7dbdc22cd14d5af4428ac9e601ac2895f5024119",
    "signature": "0x7209b563e9828bcc54613e70733d6614707ca5e5f5ab934657287a0abc3469151de7f240bb0ce2a29ae059d628b549b57bc9c1f77de70c9f8d02194e63c170971b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}