{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5871",
    "entityType": "User",
    "nonce": "0xf4fe7d6a868bda01c046c238b01e1c8d6aea1ac59729218fb8c2dc6382be960f",
    "signature": "0xe01d8291318bf2567a4f6e01aea96236224b206fc6ab7417f58d63d1c6c9965476ef5967edebfb42969285e3d9231fff0db3f68908c12b254eeb2b81abe5874d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}