{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704331284",
    "entityType": "User",
    "nonce": "0x41f385b773afb5a793d8f9b98c9a8d9308f108bcee7112c1f2d58fd6af4992df",
    "signature": "0xe40d3938e897b5b955648bfedb07f4473e07edff9c0ed8e1a525ee87717474b0593646644a6bde29fcd8dffcf25da98c7e4449cd0b3d0ca493bf3b0a9ab503f61c",
    "signer": "0x7604Fc1Df216CC6E330cCbC9802aFa3E13F8EBE9",
    "userId": "830022953"
  }
}