{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147636",
    "entityType": "User",
    "nonce": "0x6c1ec7eb8af01b55d52faa77d7c6494cc8789826baf0af62fd2421eaa2479adb",
    "signature": "0x5d723416ae3823b06c60c14b1747bbd8f3aa7c01d2fba6e8baacd47610bde08b72274bb7af89189594759358aa6878e3bf2c2a468fb6dbcd3e0c6cb0526f66b51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}