{
  "manageEntity": {
    "action": "Update",
    "entityId": "383181646",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe5880bf2d0aa1fb577e228c706a9e02e30d13deca070c46ca51a9b5aa97d0b68",
    "signature": "0xaca5a025a4f81a9f697a3de444f957ccdb596e512ebb2bc132dd153671ecc5b70db556e7d6d3a275519f4692ba3e3ee237bb9eb54fd2a7ab9bfa51d8aa1f09381b",
    "signer": "0x4A5B29c39dc57797461B1B488DB009184b5Eb5D0",
    "userId": "383181646"
  }
}