{
  "manageEntity": {
    "action": "Update",
    "entityId": "690093689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9e92fb7c0afee238c54e83d2be506548b5737c0f512904132fc623d85e51f4ef",
    "signature": "0x52d64345534f4c9e45d84e6df449bfeab03561e1938a3e654087d5f047af325905df739d26a2a6cee80b119c1106d6cb214fa2a0b0267773fb4bc9ef9f70adcb1b",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}