{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a71cd17960272e0f196b29b55fc024db6eeda3290060740797eedf840cdd462",
    "signature": "0x462ab2c1bba272adda53255c25b3145e21c55ea4e43341ec0cf6ccb2f90c597f02c543f346499d02e9bb6bcf8c1f1ec747c310c074353ac93d89e7a0af59b6721b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
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  }
}