{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae47ab4e3cba62c7ac235ec0e45be2b7d8887b9c2e786fe5db2c14a384e3255e",
    "signature": "0xa44de7eec50dfc593bb11783252979984b0048724191bcb8642a5092393fc01a4850c9a01fa476151c57bc350169df95887786b7a7668385567eb106b8b3cca31b",
    "signer": "0x03d71c9f46521125eFC55E05f673bfb2246FEc09",
    "userId": "26938020"
  }
}