{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28433",
    "entityType": "User",
    "nonce": "0xed3b3dae8eda5d43bff09b8124a55aefa0f37e9cececfd242fcc2d0c2dd89152",
    "signature": "0x0d578e8bbb475e8276d3091f99dce29ffeaf1ce073b1bfd38faa34262b6cb20c08656ca6d554714dd8ccaddee0589da6b932fa2ef3684c319ba5259ee22ed0d21c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}