{
  "manageEntity": {
    "action": "Save",
    "entityId": "693506812",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x27b8d1640462f7b025b1b1a61fa1d5758b10b64789e9a6347c3eb95fc4d72424",
    "signature": "0xc6517048751465d26cd19ed4ab1d66cb15efc0e8202722f41bf95069b1ee655010b8e518bcc9ebab303f10dfecd62f166ac6153502dcf0c35dcbe2509eda11c51b",
    "signer": "0x7Cd44Dc53B13eEA7335A000Ce36c05cDFE34b348",
    "userId": "355113"
  }
}