{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x46cb73994e0cbff9e9fa5bde9b80bee3cc7254ad1c3059ad2a42bbdf82394203",
    "signature": "0xf37d4766b702c2198307da9365b496114ff6aed3b96c1e187794a8e3bab7be9e02cddb0b80d41558420ad0f8102e18efffff5dcd1eb8da08be7de7b1b2e932ef1b",
    "signer": "0x721f076D6fdC57634d612324093cA69B47866867",
    "userId": "303348966"
  }
}