{
  "manageEntity": {
    "action": "Update",
    "entityId": "344552512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4d55a8c0e70f36d9e92957fc06be5d97c8df8c4f0bfed3f8ce64f28d4a33373d",
    "signature": "0xb8619d56f2baf0634c05e491ec2e54b2aa8f8e12cdb88c03a0b29c43ba8492ac4bdbe610094b72fdb3e6f23748c31f6d1def2a62f217bea641b514df4ae4a2831b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}