{
  "manageEntity": {
    "action": "Update",
    "entityId": "154520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasz4t2pomxh3tdaic7s2qbjllnquw6krpxx3uzhreozsutlqpscra\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":43501},{\"type\":\"playlist\",\"playlist_id\":377923022}]}}}",
    "nonce": "0xce81249d039950beb412c7b5b631773b7707afd9dafb537d490fecea92fdbc96",
    "signature": "0xee1b6b1d3a83801764a549d2fd7062d6beb6247008d8799350d80d6a9aca54362fc5d388e26a8cd6f0ae7e30f0df884294d950054dea9d2f4a31c03a9f611e5c1b",
    "signer": "0x36731fF6550065F12E9035E4a96956aeC85B9D5a",
    "userId": "154520"
  }
}