{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51919",
    "entityType": "User",
    "nonce": "0x98ba3f074266f46dc88e7b3d9ec85acb39555f7165431d5ebf67e64af8c47850",
    "signature": "0x0ce2995bbc7732350622229cb8286aa8d08a9fee1f65e573e64a13af880087a76ad127b93d8b6101c9257d0db7a48f7b255b7e8ac1502cd213f9962e3a2512cc1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}