{
  "manageEntity": {
    "action": "Update",
    "entityId": "239357380",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxqzbry5pu6r456ihhbu4oxoqxwa7nsfhs6urqernwdgwceknnhta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1652918232},{\"type\":\"playlist\",\"playlist_id\":518186042},{\"type\":\"playlist\",\"playlist_id\":73563997},{\"type\":\"playlist\",\"playlist_id\":1686416588},{\"type\":\"playlist\",\"playlist_id\":187814456}]}}}",
    "nonce": "0x451d36add4e5fe8133509f661508180ef676e2bcc3ae9a18ea40f80e7db42d9d",
    "signature": "0x9681968962040dbdd5dd5dafa2ac32a8ad5bd4df34f4321d2727cbea7b0f7a68717de9a191b8bb6498e8fef60c75cda2802c23cde3a515c4ee176434ba0ec0c11c",
    "signer": "0x254254711908e79e218DF43AEED76fa8cd18d77B",
    "userId": "239357380"
  }
}