{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2aa378ee229d85d744871fc565ffc342317b36bceee3775a59edc18fd520df7",
    "signature": "0x669d6e3925704dba4e9d8a94e9c80005cd806bfd0500707a17d60535b1cdc9ff2621b457dc9e93bb08ff2bd64081f8b42b8511910c395c194eb05588f1c58ac91c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}