{
  "manageEntity": {
    "action": "Update",
    "entityId": "140102834",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraphgddimhfzva6gojjdeftvjeoopa66iz56rxusvumbfkir3rdh2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1083876608},{\"type\":\"playlist\",\"playlist_id\":950139397}]}}}",
    "nonce": "0xea3ef62eff531ea8d4aebe8de9f83359f166e77ded1faa37221171b91d69f0bb",
    "signature": "0x155529547038a3112b7cb9e32af5e8b63a078b4a8fb0d6b70088d0bd84c3cd8a63d873e691b9342e6bda62ec95fa013917c4ad36def5093e2beb597056e8188d1c",
    "signer": "0xb7A2Af0cBD7855Bb6a84B86455d3eABB0883A943",
    "userId": "140102834"
  }
}