{
  "manageEntity": {
    "action": "Update",
    "entityId": "814144312",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe01bfd27809a931c703a6063ac4cf7cdff92a7edc97790adc3696a44f3f1f8d7",
    "signature": "0x861bc7018e62a377492d47455cc52f11d010b28d103b109c69e6eccbef15c8c50689dfa3e6e91ad36150e30f18bbaa975ac8b3a8141629879ae64cdb4363fdd51b",
    "signer": "0x4Db14586d7D93a59b9ea53c554bE1687faEAcb02",
    "userId": "814144312"
  }
}