{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76457",
    "entityType": "User",
    "nonce": "0x453e2df0dca59ae9b9362cd656b563d2ea84f62feaee973e3943c75495ee75d9",
    "signature": "0x752d142e1b9e446cec3552c1ac6472e01d79a2d6d3265559e4c17c8f0757a5e255a561c5dc736ae33559a34713431f7e55755ae946788296fe6377784141ac4b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}