{
  "manageEntity": {
    "action": "Update",
    "entityId": "237765871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8542725b39371bf283a0e0ba4c030be870d3eb4251d098bff3c11113edadb812",
    "signature": "0x6659611af0494c5c2a13c752292c2c4bffa7e2b546554c806f2a6624b0c193ac11b7ab225791be59170cc7ee8cd451896b751de8df9f16d25614d5b3c0ba5cee1c",
    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
    "userId": "237765871"
  }
}