{
  "manageEntity": {
    "action": "Update",
    "entityId": "606384248",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdbc1c00529a22301c9e4158615de8f4745b0f140da2f3a73a2cad9714914bbcc",
    "signature": "0x95722bb4fb6bf39f9758c74a60e273adc0ecb4f74bfcc8ee97a8ee515d6d0adc73cb7ad7737a1d5221553caa58edb34b2f3d5f534bb59c3b631834222f94eda31c",
    "signer": "0x99a97FA4986B28AD4429D0Eb4320ABE30C1873db",
    "userId": "606384248"
  }
}