{
  "manageEntity": {
    "action": "Update",
    "entityId": "331206081",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6ae2ac2d69b89dc2238f5f11fbcf20ac8368ad9e0e58ff46b6e6d5f40166f926",
    "signature": "0x21a0e4cdcfc77328f1f6e4d2b5ce927e418565ee8551ba8ff6b1d4dd0f4c6f7e6e3aea377ee0fc0f86aa4f5e581e3e0e95b80b6918306630413542bbeb0dd8a71b",
    "signer": "0x2a5b15029f304A82df9aF6a3fA0851a5b8525800",
    "userId": "331206081"
  }
}