{
  "manageEntity": {
    "action": "Update",
    "entityId": "142361762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5btbseduoshtyzc6jpdwdqrufs4kfcpovaasqpgyvvsgpiz7strq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":78946}]}}}",
    "nonce": "0x4231be6fd0ad14810c68b33a203395b436d74afd3cddec990d5d72f4ced0c495",
    "signature": "0x9633a9748dc56d590138df4fa832b23de2dcac4b9a16c7192f7cd6dd1dc51c950e57527f321efb2f81cc4cd36046ea815ef722594463ae323206adc5da47d2841c",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}