{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16190",
    "entityType": "User",
    "nonce": "0x2482c27fcd12ca2e8467e39a56982fc21eaa9cfa6813946108caa22b534f21b2",
    "signature": "0x6557aa9e4b381184b9a7bc5b6bceb79ef002900a751b707696b2dab8d3be570561081b4618bdcf49a05b5f7bb38dd7ff1c2af14d04b71b141f28d182211651cb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}