{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319583",
    "entityType": "User",
    "nonce": "0x1e62982db2871ac0d5e36ab0c23378db19f5510460e99cdbe8a9274b9d98c937",
    "signature": "0x9e9e4dc457d39d31ffba9e13d54bb7e74f61b2ecc3b14c9fdd1f75e4d081d4c00f6c27f11622226efa0135f7fa41224aca80710178eb3eccd176f45d22ec5bf31c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}