{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234728",
    "entityType": "User",
    "nonce": "0xecd28cce1eac5c33e18724a0ebfe0bcf813e372798487df201bf3c92d174ddb2",
    "signature": "0x3b15e752fc26b961a215e18496d119b7ab8b8132c99645a2d570aa48a7c0378f03f93a93eaf5c45d613e1038faeaa6f1ba7df7c1b590909be07459228152a42c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}