{
  "manageEntity": {
    "action": "Update",
    "entityId": "547925274",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc6ad1244aba92980ef5eabb642af59eabaae28555d4877a62931ef401b02594f",
    "signature": "0xbfe47a33166a0dc0bb17bd51e4f9635b9f869939c00a55e19fc5b4a2faf3c71e0e0f6d5f90441d5f7130045fcd67176b34a5f0f5f7a2aa05ef95d619293ee41b1c",
    "signer": "0x129cD5f15608Aa6d10d553f85023e9f6f6f30d9c",
    "userId": "547925274"
  }
}