{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127456",
    "entityType": "User",
    "nonce": "0x8e3719c2263a9b7d0992031a58c11be7ef452b952939c8ae08f51ed54b84f398",
    "signature": "0xfdba50297fbab507c9f7fd9481ffe4f266106ef90135209f71927471f82939ad4bc3b4a35435e16bbfe9136c06d246ff327a6340e5ff482a5b2a2e43e3a63eb91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}