{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332706",
    "entityType": "User",
    "nonce": "0x7e33fa406c4e718ab8c1bbf9921a8c378f483816abf6f56b8197b635753ad1d4",
    "signature": "0x9fdaade94ea8da92cf9183bb39916d9a1482cafafb05fb0d1be81ac829ef93667fc7cf9e01fd6980ac96226d740fc43b4bc47b6e3072fab8b327b2e4cdcc5d3b1b",
    "signer": "0x1424770FcCDe606D6A31FfD2fE29c6a1Ab15B937",
    "userId": "949198899"
  }
}