{
  "manageEntity": {
    "action": "Save",
    "entityId": "1596787727",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf8913b2e9cf23a64e4631d6206ca1e02676edd298c3f3f0d3f3af65de7d6ec25",
    "signature": "0x91dba1c163c0bb0011ccb1528f78deb53dc2c98c60f6345f2978f5a1d4eb4fff654405b07ad122b00f9dea0e60dae5a0eef089429ce686008cfa82fc93b0033b1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}