{
  "manageEntity": {
    "action": "Update",
    "entityId": "159580874",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x70860418ca9c6d655592246706b23be6d2d0acca0cad8b4f01ba2dd71d109712",
    "signature": "0xb3a51d22c4417b6f719020d1de87ee7f14c56cc974ca2034564b7a92ac29226d7d79294168180add16326f8b15219af1199ac9aa06799506101f0c0d48749cb81c",
    "signer": "0x6E1669e0b8d73EA38c2C3A7b05EDd44438bD96F7",
    "userId": "159580874"
  }
}