{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x5fe2b84ed8f2958c26222f8e0032c9700a36263e71f5406214a7f3de1da969ce",
    "signature": "0x1b5c1e37b64d077ad9dec68f1709c6f70ce2d9f4bf5422f82fa5ea077cf72d945032b7ac5a1a5272546fda13381c4a426a4c9e63aa76ed545600d7e5ce270b891b",
    "signer": "0x11418bF0f89e9E71744d275CB6A34888cc3A769a",
    "userId": "904421219"
  }
}