{
  "manageEntity": {
    "action": "Update",
    "entityId": "27423620",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraalz7co5nku5dsykbhnzha4p33e32iurhivgyjmpkznt55k4whg3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":36494}]}}}",
    "nonce": "0x96fa1a35e5606a9d6d6ef110e70c9e0187eae085e40a6cc2d25f28392e9a4484",
    "signature": "0xfd8b7c1d9a1a0c9a182c3e1a15dc5d2a62e329529bc2e830c27b6546e9d23a080b3ef2e7736759e2c401e240e1c9819b4f203362bf11e36ec18407404ff0f2d01c",
    "signer": "0x12b85f81e92068000677d6a4212d4A54276CEdFf",
    "userId": "27423620"
  }
}