{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12423",
    "entityType": "User",
    "nonce": "0x8099e07548c7d3bdd106cfeb61a2a5b7bc1ec1549dfebb482dfba49437d69de4",
    "signature": "0xb2a01751f3445e17ba231fef3982aa38b38f8d87066464ea77136e42e64c53a856bd48d5ad1647666f6064b3ff6b22cdc72fb5b4ed238b11b2f4cf645c94e6071c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}