{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0x843f5c44206e18109a0aad27cfa010b0657911814b4123c683c557ee814ae25a",
    "signature": "0x544821853bc6a2ae545bbdd375b298ccda5b5b50d8581c76b752c3e5c7f8934274c04f346f8b6f84e02d739b02620bd2befe8dfb8a64306efcd7fd5c38194a281c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}