{
  "manageEntity": {
    "action": "Update",
    "entityId": "364824223",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratmoy4ig37c6ocp4spugtbne37cgi53z5yh7qkc7ab27ladicmvaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":507951590}]}}}",
    "nonce": "0x84533f98048eda48df0f848eee4148e8cf3327c81ebddaa9b1f230a44e01b6a0",
    "signature": "0xe2c23ffab8c8130c21e063c7bd51b1bc7a23963229a80fd8cbe5adc6a610d6a15b77e3ef44023e9d44cf1806edc819d0cfcb3e52584e3f6fac05e3d827c919d91b",
    "signer": "0x73D0f95f148C665c6fb739d5f2eA7Aa713823CcC",
    "userId": "364824223"
  }
}