{
  "manageEntity": {
    "action": "Update",
    "entityId": "318238731",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7wa4ajbm42k4lypydhqnjvowrqv2fbdmmamhd46oyn3i4c6balbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":623279411}]}}}",
    "nonce": "0x2819ad6c2aa7e6e3197fda736c591f952f04f0080dbf17b30e677481fcc9690f",
    "signature": "0x72f35780a0cfc9e47ec007e12dcd1fee985b4e20617e2512862645e1d003aff31d813ae80b031da6311a62d2cc32c868890251f050badf627c85e7b34859be321b",
    "signer": "0xe8533DD8DC48B11EC063191b0ab1C7CBD9C17662",
    "userId": "318238731"
  }
}