{
  "manageEntity": {
    "action": "Update",
    "entityId": "631403992",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x407201b2d9da0c415a101ae59db816ebaad92ed062c5eb17f247260d6602f672",
    "signature": "0xf6d4fa593e6ccef21e421e06debbb0a3a6062dedd6e9506cfa04bcc4232bdffa2efe6b04308d266486578554a831c21ee7a1bd5563458cd96bbf0e885a2a1a831b",
    "signer": "0x3382C7C7AEDC42b2eBCF4d76955803bd8494A5F5",
    "userId": "631403992"
  }
}