{
  "manageEntity": {
    "action": "Update",
    "entityId": "590477959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayrb2ur4patrgguwsillfiawxd3fq4j5j4yc4ij4f7773tm4kbdhq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":59188442}]}}}",
    "nonce": "0xa54cc786e4f0c91d39339364754a162493a40dcf78925d45ee45326046f60b28",
    "signature": "0x48f2a80ea7100f39272ade6dca2dbc8a83dd0a627444d365d4602935e0e127fb291e0fa0c23a8f936f8c9c9d6904f42fab2c40f1651aea68a63a93edf7dc1b951b",
    "signer": "0x0df3Ac5f8Ee3697cb62339c25b235F18b5fec32b",
    "userId": "590477959"
  }
}