{
  "manageEntity": {
    "action": "Update",
    "entityId": "425407904",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraud3wtawz5ehh3zxdpoz6uqjnym7xca4jv7po3lxpudntrf5bpb2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1453584539},{\"type\":\"playlist\",\"playlist_id\":148991981},{\"type\":\"playlist\",\"playlist_id\":252366405}]}}}",
    "nonce": "0x8bc9042a3aca1e1b5d3107190b342206f2f7450bab60ce676d1428e9e780b7de",
    "signature": "0x0624290774525dae82ba3f600e15dccc1d39bd1fa825fa2c6b15c89862662f2b7caf85af11b2523884279bbd12f08d14ba6b48dadb9d3ebe0432c4e6f07521451c",
    "signer": "0x5A844c4357CB1A8239DD72D5162046f958b59DA9",
    "userId": "425407904"
  }
}