{
  "manageEntity": {
    "action": "Update",
    "entityId": "994976921",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeb4d906894e6cdfe481c91417ea4078a303662f02c77943115dc27b4754080f9",
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    "signer": "0xC316FCfb333BFe861A645a3B79c6816b0F2f3bCA",
    "userId": "994976921"
  }
}