{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6209",
    "entityType": "User",
    "nonce": "0xcd0f8e7003df81859ad66d527f40d1268124018556fe63d149df5448dbac37d0",
    "signature": "0xd2e078b8deb1a0dc61d9d78d9cf44b5293121ab17441b0c1f300caa0d2dae4f96aeb657233d1740642ecb9b3ddb7e0388af596d8d71ea69753637a0af9a3cdb21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}