{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562857846",
    "entityType": "User",
    "nonce": "0xa23ecabaa76d9eee82222b372385bbcffe4c5980a13db2d54de583bee95ba643",
    "signature": "0x0b61acf78bbfed42ee7d42824581218e12eeb4997d11334e276eb444f04b420b7d07b5b41604eebe017737f3b8a6dffbc51201c7218b4becb548c6d6593f3d2d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}