{
  "manageEntity": {
    "action": "Update",
    "entityId": "320708254",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabaxfp77t2o7mckmzqqrj7ca763xco3cy4hifdvnhomkhaby7h5jq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":467581875},{\"type\":\"playlist\",\"playlist_id\":514613298}]}}}",
    "nonce": "0x096437522a6cedf564396eccff494d4932def13e63482159cbbc5c67ddc53289",
    "signature": "0xa645bc929721011c105c8594fe5d0392ad28b74ad4cce19760f1ec1807d8b3b6498a5a300843d43190e38c70d4a23b40641c115caaf20db15933f0d9e2b4bd591c",
    "signer": "0x0Cf69629cA9d9D0b310755fe29469E02bD2D46a8",
    "userId": "320708254"
  }
}