{
  "manageEntity": {
    "action": "Update",
    "entityId": "933290337",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraokudl22xmrta6gtfdmyw5fb2boaktzeddcqvdy7tp373hrmdkcvq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":790820536},{\"type\":\"playlist\",\"playlist_id\":1468630324},{\"type\":\"playlist\",\"playlist_id\":1486299517}]}}}",
    "nonce": "0xd1481569259554b94f2ebf2a37263ba11f9a5cc779cc512ea9611d327a2fa489",
    "signature": "0x8354758e8fe95dab7174b31cc35c555bf05cec73b29716616c8d3abdc6d6623e24cf2d0e11173f2330d86c4ec68a96bf1984593b0f4c4ad463310473f3466b4a1b",
    "signer": "0xaD6Ea5f8D94c260aCEE3ad53cb05E821c81C0C01",
    "userId": "933290337"
  }
}