{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192364",
    "entityType": "User",
    "nonce": "0x4c9ec3e90a22d5524334fc9403c9a9cb490b3ec20ff8dece761503518aeeecf6",
    "signature": "0xc18ec49f522d239b2111da2db80a2e1a4f1493bd2276d60eec6852530ab7d73e4a81955504028ea4979e58600be4eefe1472016c2fa46577648edba8c5dc58d81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}