{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0x47d8d231f684eb0a1539040567d10fa2ebdc5d0946043147b8b8d5f0856551b9",
    "signature": "0x78e5b844bd7217bbe77ebdc80e7d43ab63679538ce6a36b95b5d9604c310cf3b7ec2f20358566f86264eceb772e442fd85f41f898d6c53bd8f8743a4877e12001c",
    "signer": "0xD0b2Eb9b9b524f6152055A9e9ceDd88E7714Ad5d",
    "userId": "687305535"
  }
}