{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330723",
    "entityType": "User",
    "nonce": "0x42ee2a0f57a337b8c1df20a3cd8868dd6cd68326d5d286206ea762b2d025f635",
    "signature": "0x770faf7d914a9b9012adcf655cfe2a3dbe379ac36404b6d906c908adab1419250d0cd46551195de67856cf571ea5837050450b973dcab891ca5ffab053d3d9801c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}