{
  "manageEntity": {
    "action": "Update",
    "entityId": "444269439",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x75f0df76816b5439902cf8ee9d0fb4fd2a92b184ae566b157fd52c258886edbd",
    "signature": "0x2c6dfdadea5f2eed865174d67c90154c7f28ab040915bf9747e558cff265293e34a46c7b9a690f30807b1dc33d7c0dd5ea803eba07ac8952e2d988c3b7ae34bf1b",
    "signer": "0xb566C50D62A2B7a66bD124a5d9AB3Dc2C7bD75c2",
    "userId": "444269439"
  }
}