{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6913",
    "entityType": "User",
    "nonce": "0x7d5d32e6ae71d25e1a0c44200a4c4b9b26f125d8fc563cab0132adf31dca7eea",
    "signature": "0x9563b5840dffac968c488c7fbb6fbeb956b1f1950230fada8c66b8f17db09e282d253e8c3e8ae6a54fc748e97aa2fd389741234414d9b3032e1d47f71204c27d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}