{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1959359",
    "entityType": "User",
    "nonce": "0x568a662189a957df633e4bbf015f0f2fa05336f2cebaa4c582bfb789bc7f90de",
    "signature": "0xc0d606cb2f8e7dece9ba3cf2392b4bcaa29001e5148cfbf4c10f4e09de1697fa70f477ddffb81756d6a1b6fba76fdc414a201de85e4ad4d3d8280da08158b7df1b",
    "signer": "0x6B2Da146c470972DE088AF9d1115Cdd3cae54637",
    "userId": "451708212"
  }
}