{
  "manageEntity": {
    "action": "Update",
    "entityId": "850254795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12007e1708fb0a6abf9a157974333345e0014531f7ced5e4b994dcea5375ae28",
    "signature": "0x8a303a7d09971195e30d66c3f9a18ef8a6adcd7d01dfa3dfdeedb1b595c04de60fe6bebf096cac66c58830e80b0d36efcfdd39e131f9bdf64b2f5491d18776961b",
    "signer": "0xA5F8D926639c3Ac746B95dB5Ef70CE2a8B4dCD55",
    "userId": "850254795"
  }
}