{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133454",
    "entityType": "User",
    "nonce": "0x7fdc8116b62701f23d97e748d33bcc5687be8d383cd3cea298e8787f6d27f147",
    "signature": "0xe9a5902d1eac75b3fc264be9d5612e7bd7f16ba1f28c540422c1a999a7d1ab471308eacc78875fb07929bab25dd2c446106aec550cb1f540acbde11ad495f66f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}