{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x63001efe58836ced8cc4db2dc87439957e8d0fca45335103d925ffa2fd62b2ce",
    "signature": "0x4e21f63d84b97fa2735745324b0eb7cfdabe10d32d59899208a80553ce4793ea4185e040969ed601b94d4e66c18fc9bf59049beba250d70409ff3ea195e0f5a21c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}