{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "805358375",
    "entityType": "User",
    "nonce": "0x3d54d479509ddcbc5a197fd9cdb73eb3d87c28313f1861f0c8501c18634b47b7",
    "signature": "0x738d89a8bd8835b3fba7adc214e20eeb624a966f2c540f8e1c81df484d36e1dc586bcfb80fe77c5ae5ca5d4411c3fc44abca0e35b386cc75dd4d046d9cc0acf41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}