{
  "manageEntity": {
    "action": "Update",
    "entityId": "746635137",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaef1b44c96a08cb992649d9578633aaa65de69cc2f9d08ede5fb490094adc1be",
    "signature": "0x2fdeb136222b192f29bdd7f16b0d9bd2e743e3a87512066ec4f40a647251ef907f7c0d5990b48749a2a5ffe0b597318c363410ae7c0a3ed13df6ad907c0750ed1b",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}