{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "266663",
    "entityType": "User",
    "nonce": "0x725d0645021699fd3e5fd64beab328838dc07e69311aa901cb3bec0f8517c602",
    "signature": "0x9966242899daf20727353e4db913e16073da992a9709676ec9d206b6239447ed58c69f6bd1aa3a1215444bd7936dc0a95d99841e77f59181d25ba097b6e0002d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}