{
  "manageEntity": {
    "action": "Update",
    "entityId": "787787230",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xca8ae1e20f20956722dbaf9e9fc7173cf44595fc05bea424e156b0c24e7b2da0",
    "signature": "0xdf61c24d9712182e527b2ff28608dfaeb60bce02f42ee6a2a55637e494cbb11e0d3fd56efcf8ca1432332160ba4d28fceba9f4a85422754792c78d01c3c1787e1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}