{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60815",
    "entityType": "User",
    "nonce": "0x59f9a3da710b3b098a3af2b4f240a1d45f4bf3fe80de8e69a7c59b7e086f3e21",
    "signature": "0x27b3dae8092f1f73413ede13787c9b3e5cc5f1d7554f23c05e86799ba83fb7991ccfb12242943d39bf211d12466d7dff0ca0a042d1092ea63286b663dd4b48be1c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}