{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143310",
    "entityType": "User",
    "nonce": "0x56b8eb174a958a003d95fe49a6e139b596cb16e136ff0bb327597697b5b99b8d",
    "signature": "0x7faa8cd02e780293e89dffa0d9929f369f0ff7552dc4edc74861385782db3db96a27594ef3b6b71542f39290f6be233604deba77da874eec02e97f55b9b782891c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}