{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268337517",
    "entityType": "User",
    "nonce": "0xfd8f24df175dbb83c9a1984e5e0a496cc49caa2c6d027c5412d69660342f3739",
    "signature": "0x42743b500e83cde763802f4fd35611e22f4f69a19fd06e72e911781762f3124b22fad0a1d01ce777bd74a0f6e6fd159ddb1de949ff6fe46feb5dfe23075264b61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}