{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0xc57df3de7b6bdf32908b72e20f9a855c5c559cfe0931b8c296d10050ec608647",
    "signature": "0x3de588cffb98403a137b53eaf386fae88eaf22696555d212b75eff3197525a552d49d2dd09a83e43e771d3567f12477451461abfa83013a5988300265e3de18f1b",
    "signer": "0x03B2B16FC491BB9F7E9819D5186aF26a4DB298cE",
    "userId": "813481002"
  }
}