{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105301",
    "entityType": "User",
    "nonce": "0x65933b9e3a1a199d58c4967c1ccd076e6720ec3402d9e8b9745441fd0a972a7c",
    "signature": "0x968fb96afd1789441358862b0d02353d1b405885e46459362c0814995dea4e5645635681f5e504c7b86ffdd4718d4e71d0409ad99b9dfa450ece237c83891f501b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}