{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0xd1d716c8dbb33047989f0e7dd835051ee955571118970696f7e0d758c7ed5092",
    "signature": "0x021a42d0a1e46d5771fceadc64b23b0d09386f68ce34e264feed19cdbf925b5e70351a1c0f7afa9f69793b937e001112f171ac76017b99d31a7dd0c7f8af99921c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}