{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372483",
    "entityType": "User",
    "nonce": "0xd9350f97909c274f31c70ad9c23fd4877f74c124d1350424258738aa7eb15f42",
    "signature": "0x70d11ce787d1df79a7c0829f005628ebdf7d1ad4beaf13dcc18bfaaf2af720a41289c96660b5371c06af264a67fd12bf5ada9f973c6565f7ed3470e7845f27231c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}