{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328108",
    "entityType": "User",
    "nonce": "0x96bcfa97b41872bfba2e8a361a62fbc1223903dff930e7f89596f8a27b68b53a",
    "signature": "0x799fdadcb52acba6f6031cb2a8a49c0f4297fb59a0898c1be9ab04e5f0e03b9a6ae5f64ab70daec00e4083ca65553e5dc7726707477afc48f713ec93a06b27281c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}