{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72941",
    "entityType": "User",
    "nonce": "0x9f470d40f730afac1c279c550ba8abb6b7335c022bb2ffdca064039158a0d4ab",
    "signature": "0x503eb59a7bd28ddbe10a3df872f2cc117ee4be2a004d971eb111a40761687bbd7fb7ace18c25c2abb920f136dd768c30e3b27d2dd3dbd40ebce330056e4965f01b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}