{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0xe81e1ae33fea4f76e10743987a3fed0394f6e09c74dcfc52145483dc8d46fbb2",
    "signature": "0xc0b4d4bfa30e565bf2d52a897068c1879b7fe08c426c8cd86b608b86f37d47796ff9178a0698819d996bc2f7f9ea093969552a13651663e089e5fdd9358db2901c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}