{
  "manageEntity": {
    "action": "Update",
    "entityId": "904421219",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x85a27d9d0ff41473fee8614c383371e7285d52e7b8e039094fc7fe1873c55aab",
    "signature": "0x708a0357b0e7a727be5ae69e2084d1bdc6fea25be3d0552d4554e6647da4620d1cc6b9b7724a8a59b92f2082cc39928788fd0aedcf2c004b529aab994f0bc8381b",
    "signer": "0x11418bF0f89e9E71744d275CB6A34888cc3A769a",
    "userId": "904421219"
  }
}