{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5776",
    "entityType": "User",
    "nonce": "0xcf51d8d41c15d7e10a7aed5d215205c640cd91228a048da19ce52ea8553fb58b",
    "signature": "0xb6dc7aca01d54f24736361c4a8addba652230dfd1307d2a455b2baafa66c31761f3d3c3fc43779ac4bf0bd3c75bfe48be8cf61179ce9eb18b52621d810c32c981c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}