{
  "manageEntity": {
    "action": "Update",
    "entityId": "887741865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf1a574b2fa4195c8fc7dad7f990253f85cc2faee317ee7d3d3f7de9e7939632d",
    "signature": "0x46eb6ad1c9e784d536f69f073a89ace33680ebce4c33fc13db19cd7f6f7636154ce9bed7bff3f8621ea825b4f9eee252d3f2ebf5b6edab8927e405cc6180effe1b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}