{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240453",
    "entityType": "User",
    "nonce": "0x2e8525e2fa8c7484a6d8b565970921a12a4bad061a6654393e2d5f390e6f4458",
    "signature": "0xaaa28585a25207490b9425d840c927f122a711b855f1c4e3f886a241ed03beda02952a85cf0cbf55aac764e7b271be3b55d6f4f9b142abafd1c8e24a094684c01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}