{
  "manageEntity": {
    "action": "Update",
    "entityId": "918602404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc5832bd9a44286342587a19d9dc6e296bbf7ddab0a2f6b1f56fad170ac6af4eb",
    "signature": "0xef46a3970f74c8f0f4d5130b6536bb2d06a03a6b4c3ff679c86b1bf1e9f1aa542b6b4df6e0085745c4250e0c67d5070f355026d9cf7e3eb02967e10a58e87dfd1b",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}