{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xd84f245bb28be50c34a62abb44aa5936c9bc5fe0956fe0c700e2fc58f8d69e6b",
    "signature": "0xe583e3297e64148c4627707c8d1fa7a267a1cd502b6499450b5b7919e31e33cc26d1273f8c3452beaba452f9b28dd1a4bc12bf5939567e7c2145b572fce182841c",
    "signer": "0x914c1658bB5967D43E73304cD48EFa424776a6C8",
    "userId": "216111760"
  }
}