{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299279",
    "entityType": "User",
    "nonce": "0xecda61272c8e4cd4d1d2a064b2b5993d5c0c50e17bb2a6e051a7727ea68b1c36",
    "signature": "0xad20d7628e1b3ed3409023ac3c3881c4c2214cfc07c4c78fcb67badf5a7cb1327ff0b4cb87333a99bbcc1eebb99b3d2ed66df4fa3785ce1e2faa84dec50267ab1b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}