{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742907554",
    "entityType": "User",
    "nonce": "0x1b725b7efa4760d8f7a4cb8a6b9903ae5598e4877419092c8f32937e65361dcf",
    "signature": "0x08670d24f318a701036657b79a29bb7140ccc1a198755d94801421682fcc04ec4f9527ebe7565b0d890d6459bebe02922faa7e3642d84ee9d4d661ca8fd3a4aa1c",
    "signer": "0xCb62a9Cb72608ca74EEe6bA8E7D4F9eDc508C9ce",
    "userId": "797245792"
  }
}