{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18272",
    "entityType": "User",
    "nonce": "0x0daf740dbee22f3f259759b9b96c54bdfd984cb1060f03d4a6e5101b5027cc8b",
    "signature": "0x06d708dacf02b2a21b8e5c3c3f6fc41c7ea3a3b16dd03ede4b9390e93109de4f764a1214db12c7eac6cb24bd9f3154f512e4d554d22a530fb914d38c17303efb1b",
    "signer": "0x2d4E313C5C5BBeCd31f664627b0a91361e5D04D1",
    "userId": "106406"
  }
}