{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144473",
    "entityType": "User",
    "nonce": "0x15e568444be957e85be8bf116cd6795b45d044848b950fac7f6611c43deb9ab4",
    "signature": "0xc9fcf8e3141afa0187c82c93bd3b6e758aa8bb75be2c2ae3f10bb8d7b7bca9946274398b313573751015eaea4e7d7d2c1712895fe6d28f04a34b18dd61b6da781b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}