{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69134f44fbd9b8fb7cc034920820fba4d1afdbf78cf155844cd95157d8917148",
    "signature": "0xdd151ad6cc7a380225c7b47f5353bf1d8a893307409e653c275940159eabfef6147cab9b13bd969b1418cb52e6bbeb3540fc6476c37d1e9a2706c458f9a2042e1c",
    "signer": "0x4Efe002fd2619a58Cb42ff57AB95B37f629DCf82",
    "userId": "424450408"
  }
}