{
  "manageEntity": {
    "action": "Update",
    "entityId": "980941",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapffx2cgk3htoh2wkb5tbuyv7hnywl35scxyinkxznicyoqp67o4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1683845443},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":53481},{\"type\":\"playlist\",\"playlist_id\":142975}]}}}",
    "nonce": "0xe1a706df72a4d7a6bbc237270f09f0fdbb30a4e23fe085c2d58ac11dec91d512",
    "signature": "0x5e5a67601807da849f3b45f32581607905c909ac658087c8c09a6d53a9c97d1014a224b5c772bc82593b1fd97de330f566a1792971ebc588a26a03e2e591cda51c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}