{
  "manageEntity": {
    "action": "Update",
    "entityId": "72953246",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9319958428504dce617b5ba3a3c9e473cfb37511c4a61923a79cc9587278178e",
    "signature": "0xdadc798a01a601c8c6d0934c27948e9f3cecb2187ff3337007b68e78068c90b955f162177e1d20123c57f701cd40d318552d22dfe09a353bc172cdf6f088a0141c",
    "signer": "0xbA998F2aa726faBC5DdE561E5563248f875c69bF",
    "userId": "72953246"
  }
}