{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50918",
    "entityType": "User",
    "nonce": "0x46daf4f47628d2af22a34a0fe4364e10f4e2868fd2204fcf4ca35d74d5441f4c",
    "signature": "0x38a525fa72083c67677e1565062044f4fae9e01c26ba0f2cb7cebe63ce7d792b23938234c7ebbba94abbb8b8595a58fc2e87e1b57480d28bf0c67e507cbb3d6d1b",
    "signer": "0xA262fa1E6a4e2d4fD07d405D0572e986156e8e19",
    "userId": "16238"
  }
}