{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77546",
    "entityType": "User",
    "nonce": "0x2d003c3d539941e9bfd52daf840367d1e231792be05b4ff2e7ad2d9cb5d8fff4",
    "signature": "0x5f094b07af8cea0280e0a60855c95496f3029b8c0e46602bf74974ce4ab439bb52fc034bd8381f8889196edef30834a149aec118f7dac2f13f5f58b690cdf9821c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}