{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234073",
    "entityType": "User",
    "nonce": "0x4ff8f84fcdad595763798c4ba65f7a6b572046f5b59e9f0887f7465eadf8daed",
    "signature": "0x8ddba85582593f3c7930f29ee1294d4a7dee34db9b1c781f49e138113e717cc14219fcbc336c6c5ea29d3f9b35f42f5cbb85c5d154c699fdf9928beb6ce9cbf21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}