{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108599",
    "entityType": "User",
    "nonce": "0xe2d6484c514e424bf0e1b110632ad13b6fed0af6a4bb6a47e5eb7155f2d957a3",
    "signature": "0x0299f51bceb4e1a72ee800d3dd5b34f04863ecafd198759361efaf11706296523eab0e11e5d5dde39d6c086b4b1f1b9defd1032081123a93655e4eb643ff60fd1b",
    "signer": "0x9f5896C078219d89B9A5D8B9C381b7be8BEf4CFA",
    "userId": "56704236"
  }
}