{
  "manageEntity": {
    "action": "Update",
    "entityId": "341483447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x32b002a365f9ad2d457186a65546f59a888c8ad2dd8784fa7f545928263f1f14",
    "signature": "0xe159a75d98624686785447a3c25dfb9d9c2696fd9dceca11bafae4b1345d95db5992d18402097778b4e771f623e34fd9fd367817d7ea2cc4ff01c24b031822b81b",
    "signer": "0xb04b5FCeE18f8c3d4691C5F8a42aC205fC1941eA",
    "userId": "341483447"
  }
}