{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4065",
    "entityType": "User",
    "nonce": "0x3d2d27587304630f71e05f074e0a8c9a30bb30df81ae79afaeb9327411d58a75",
    "signature": "0x1f1a9908ce721e5a59cf2f9c63114233a153833f2afbac3c538a7016505e60d50eed7a8afa3c4cb84a46b1650c43b66c8b19fd3ccca4a6d76a451c1883e5e6a21c",
    "signer": "0xF7C299AB5282FD59254Ec0098FC5F1B997682c83",
    "userId": "61898"
  }
}