{
  "manageEntity": {
    "action": "Update",
    "entityId": "895116314",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12db150077984d0babe535e6d821c1d480ea1752e41d97dfbbe88c8ef8a5cde7",
    "signature": "0x772425a5617048c8afd288a0514fd7bec24130fc877064f26b65c72a0996945d6cacbd99b4531f3d399ae03fcbba51d76aa31068d08494f11d286e5ce30c9cca1c",
    "signer": "0x8d1c680a3cFA0F2d13Fc9419Ea40218D931dcd1c",
    "userId": "895116314"
  }
}