{
  "manageEntity": {
    "action": "Update",
    "entityId": "317157277",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x88e6280461ebc83a510652c6050807c8cd42e1f730606303e6a9fb766e6b28fd",
    "signature": "0x7b3f1568ac064b27145ab13c6749e8efd1a56face94b7c69e8377807d2ac8c0014144d9cb40db433b6d67d6710c7bf3d5327be6d5bdb7efc021f67d4b6549b8a1b",
    "signer": "0x77282D6E34A98bE21dc6e6BCAaf9eCCedd4f6e38",
    "userId": "317157277"
  }
}