{
  "manageEntity": {
    "action": "Update",
    "entityId": "127830355",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraufrqv4jgjfotvlma2oaxftylwpsbq2yex7marmkdscrskt57b6ma\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":817591176}]}}}",
    "nonce": "0x41eb80bb1be9fd1460f092b4ff5b193b5b0a3442b0a41169e82048b09992251a",
    "signature": "0x2a9d4bb275a41949d61ec97e09addb0e5245fb51cebe85bde5e7c757ecc3fa5268a8a7e384eb2c75b1270396044ef3a1ba9662123c98653c5a4b32acd7d902931b",
    "signer": "0x8630F2521F11563729A6358aD0134847e803C0B9",
    "userId": "127830355"
  }
}