{
  "manageEntity": {
    "action": "Update",
    "entityId": "136902762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa82d0d708dae07e3e798d4f08ded3dfef6e2f3c6edbf7a0c8ed3ad23210ae30b",
    "signature": "0x7874954f87ad070143fdd225e51bfbbf959d738fc225cefae1ae22cfbedd07f63d261847d2516be981fddf0cb5ce97ca1abaf14af8a879e2b0fdf2d87ba5332d1b",
    "signer": "0xb23F7ACBa14520B7919f1C18a87b3d90246cD0c4",
    "userId": "136902762"
  }
}