{
  "manageEntity": {
    "action": "Update",
    "entityId": "610666359",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x80a1207eed1de4bb9d36cb3680170a9b71be04f2562ec3a4bc474fa983a30be0",
    "signature": "0x0375f41af798f0ae6e9bc4be4b12ef59e1d007a256bb9eae763b2fc1d8a9173a6160e9e82d4c9e5ce5cbf65517973a465f1ff46a7dd9507214d03fd829d420131b",
    "signer": "0xe74FA75B0daB3D435eB8c81dCaAf5637b8729aa6",
    "userId": "610666359"
  }
}