{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1429398",
    "entityType": "User",
    "nonce": "0x4fea26b3149baee38a2c4cacc85fe6ddbf5dfd23e13e992f3e8a6d9ffe712613",
    "signature": "0x288b094dd9d9e1e3d8b53ded74e452b05b93b9b47a44a86072217a6daf40412161df4395147316c523fdc2a4ddd3a917ffbc8b06dc3f317094a2299dd4c3eab61b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}