{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x0f6e2baeee0b63070c55e75cd0992df43783fbc93ed3f7bdbca7f622d79f33d7",
    "signature": "0xda88b76e12c1bd53dd1030187d7751441c27cc94115ce8f04adc71299d48ca0e74875ae98b4ee17b767689e9bf1a58956e87acc7d7c2d5e2f79739d2772637ba1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}