{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa8002843490fac4301c706444e97fe5851389ca88cf8f6716784adc6bf3a687",
    "signature": "0x8c3e66c503f2e8c5385e1f9fd6e399aa3dc8b619d2d7da0e8497a6e0f05b1562061eeeff2062497f1bc56c0ac9cd2b363dbf283070ad41794bc627df6836828f1b",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}