{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0x642328c16b791cca65bf64dc19362a44cd1e1995c5a8561ddd2e63102800c36f",
    "signature": "0xd89e611b8ca2828f8eebbb64b91da5aedf041d04c3c25c3546ab91d1817b9e985a99d95a82df7a8433ec6f574c4827fd1feb39d37157fc3623e356af89cdd72b1c",
    "signer": "0x29DA29cFDe586469112dA8593Fcb9B91e30468e1",
    "userId": "121018469"
  }
}