{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297337347",
    "entityType": "User",
    "nonce": "0xb40538371b2ad2851643d66d0f47fb6613d9fb7612dd7683c21212141ecb43e5",
    "signature": "0xe2315d6836291a726a4fd9bb791a03f1fe732a70b29dab45877dc897eff397d669a32d90400b218879accd1c34f3fa45a24467a84b688cabe88a088d91679eb71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}