{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306850",
    "entityType": "User",
    "nonce": "0x102d900f3839860d158183d8a4d783459a43a5b2348ec3790f08f9412cafd809",
    "signature": "0xafa57fdab06dcdba3fec2d3dee922333a833d178121169b22658ac8ba1eac28f653682efffd36fa1ce66a805cb2112ff6d8e56a64bbef912fdac23fe47cee10e1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}