{
  "manageEntity": {
    "action": "Update",
    "entityId": "395760110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraonnti5cv52vjoiebwbwy2ypeir7skgiwv2jpgbbkifl2qy2xpxla\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":600018954}]}}}",
    "nonce": "0x8176a5e34657006df44a840767bfe64766b60bab129c99d17c1ce9b8300da96a",
    "signature": "0x6a5050f76a6dcd8691c4e9c96b020ddede5c1ceab0ea062a101cfc9c45b6d6cb0c6cb1588a559e36b000077f58582ff0c0e0e930f31ed42f265c5d3b42d0f5d41b",
    "signer": "0x70559eA08FdCc5b0de1d03FdC7571c7DD8E49fAa",
    "userId": "395760110"
  }
}