{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x89297fd68ed9ddb076505b7f7147692ff5525e204df441473381fb8af6449007",
    "signature": "0x0b07a9bf1e2aecfc0804372d8bbb4fbeb3a05bbf7f35da04a6fde2ec0b1cb6d518f4ef5744b52f933bf63fa8e87406c7f37a9766d64b1183a7f7ba028ea7b6fd1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}