{
  "manageEntity": {
    "action": "Update",
    "entityId": "347769544",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x94677e9659777fc13d87d85f9775b8a6804f23b263fe9a3227dfe4218647fb42",
    "signature": "0xdc9858f8ee7bd3467065bc88501cedb5977466126b93fbf4af8ef8db45c889df6bead84c4286703a6ab041c238987ef572e9d8ea5ca459d93d8b2e733645184f1b",
    "signer": "0x7101d3D7F09Ca73A23b495313a1055968bcb94Ce",
    "userId": "347769544"
  }
}