{
  "manageEntity": {
    "action": "Update",
    "entityId": "616706528",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera42a3q7qnfuwsltt6r5gvqr6luu23igduizn7szxvusdyeu6yy7ga\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[]}}}",
    "nonce": "0xf2cc60482fa16f5f4db8d6a17812447335a084f9d52f47394fb08801e8912a86",
    "signature": "0xecaeb6fecf08178555924e57d96bd65fae1bc541023851eebe7ee96f3ce6f5533c8f7b9d4926823e5596cc3665f2aceada5030e94bd1c1c560436491b826c3d91c",
    "signer": "0xf9D7fB9Ed07a3Cd3e224170e6807926B5b5E07AC",
    "userId": "616706528"
  }
}