{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2127",
    "entityType": "User",
    "nonce": "0x13249d43669a637d29c6edda296c6b2cfc7d0311f4d2f9d119633c3e1911ec9a",
    "signature": "0x78944b307d9d309c46289c1d6fcff9271568329b3ff1bdb2ff158e59f549f27d33320f6add42f5c5486a6fd82c702ddbf73054ca7ca80512f5a968301e3a38201b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}