{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151429",
    "entityType": "User",
    "nonce": "0xb8ac69264eb338dab421cadd6643a54b2c16863c3f88fe28761e94a958e9205c",
    "signature": "0x670f1044f69fd12887ee47b44ee0b05c2796917b2a0d8b19b29e484f3ea0ce9b52f2a0765e2066186d9834cb369a1c44d1fbd9825d1598279315fd599a9e7f841b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}