{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x3eae2ae037615fac92645f5a1ccbeb770a6c6cae28b0dee0d5dc37ce1b37091f",
    "signature": "0xdaac0b73d52f991ec970e217f9fe7a48f2f99ab3e013d066e8a91f53ee65fa751c89d24fa1819e995199cc05e251c8f0ddaf1e989c219f045a2e56b28ee0887d1c",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}