{
  "manageEntity": {
    "action": "Update",
    "entityId": "331355657",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2i5g6nfouex7cmgpfjmwni4b73jlzqdyutbwxp4uqrkanvggowya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1385523256},{\"type\":\"playlist\",\"playlist_id\":771769477}]}}}",
    "nonce": "0xdd67c3370c776b91aa46acd86b975336d8aefeb18b0cb154b4559dc0fe8646f7",
    "signature": "0x5dabdecec5edf035d43e121dfc8d6d82463ab67319cb097ee9872ddda0c17dad77c7c2cfb6cd4298802ec2a610ec59d1b1093af56b6a8b2e05236b6453fe8fb71b",
    "signer": "0xb7993ED9e4981CCf418330EbDB7f66c3AEFC87C2",
    "userId": "331355657"
  }
}