{
  "manageEntity": {
    "action": "Update",
    "entityId": "882372733",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x823fc58e6817dadf677953dc01505e3e3f1b4cea4629be75348a2add79f5a213",
    "signature": "0x403fdea8ee5ab9d465134f1fbf62e2930e6be91aceccaef8812bfe135ba53e053a669341604fbbcdc460b3851bc483add841e1210239e46bf75f0fb75a33df0a1b",
    "signer": "0xe9a34E1e60C16D6d6AE04648Be52340d6B2D8d76",
    "userId": "882372733"
  }
}