{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159054652",
    "entityType": "User",
    "nonce": "0xd5dfb67adfbeef2cbd9a30e0af2785772f6f47f9af4a82ae567974eff319ad79",
    "signature": "0x588d4430d146eee1dae72c6ceef72f809fd4279bf33f989e0c833108e7cf6479293644368f3327b979c93b0a89af79bca3ec427c5d34c2da1ee7f9e5581396eb1c",
    "signer": "0xDbF494f94f82FA4d07BF00775105E24710fbF7A8",
    "userId": "377987780"
  }
}