{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x910a9985415b82edff7c5af45dba90e357827a72bf18eefc71d2c56fbb4e74a9",
    "signature": "0x8fb86450cccef2c09d02fb406b406884953d455a2245101d3b93be3039540ab120c01a1b5c725d2a0a28267a248d186c135fd7d83579e1442c5278f6f647c2691b",
    "signer": "0x68a290bdF97c9a69319e6C1Aa0E897f7Af453cED",
    "userId": "200282413"
  }
}