{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390966",
    "entityType": "User",
    "nonce": "0x833d326cb5fdde8f66bd2fd362834346a361ad1fb874e5033ec9f3071a0a3e60",
    "signature": "0x4c16ea3a6eef12ed04b06e82b43ae6ab240c2cc9c5b83518cbeeaf9583d6b6d6060492137fbd9e03c4b37edfb9c7a543a2bbec0b8dcb6f50a7444af21e82fb691c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}