{
  "manageEntity": {
    "action": "Update",
    "entityId": "304460182",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf62d56a6f89fb244fcc28066a79c51e2b57ccad260ae475eaa5fc9c82e3ef3b7",
    "signature": "0x03dab0e9918d49419ea92366b604263d18ef28de2fc3df219ffd661625e2b228527e074c84132f8ee3285aae7a2b3e62304b335f731e60bf97c88559759751de1b",
    "signer": "0xeC7159Dade2793856fBa420d13148ef6034953BF",
    "userId": "304460182"
  }
}