{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568643352",
    "entityType": "User",
    "nonce": "0xc63a63f4c195d9b358ab38e5ebb44813772de97dea428f67c115e4c6423a7a44",
    "signature": "0x6707c605e2ba1b2a8758185b1d5da9d24eca2d04967a646877d2bc941e0e8c6160fbfbea7bd63b9cea7995bdedcd6eeb9c180bed791f436f1ceceee16ff46f951b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}