{
  "manageEntity": {
    "action": "Update",
    "entityId": "526915722",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67162c1feb0aaf112bbd8a4e76bfdc567f95721d4fe9c0a94aa7f37077747be9",
    "signature": "0xb8fede9410c682a72f0bafb2b0f4775684a6fc4cca7955975969bab72aceda6b2a1d04951b22a7ec553c9dc9e166e9c447863aabab2d4a236b27a906e4fbe8a71b",
    "signer": "0x8AD258A64f19f2702E1edE539A534733eae80a1D",
    "userId": "526915722"
  }
}