{
  "manageEntity": {
    "action": "Update",
    "entityId": "549983695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera42a3q7qnfuwsltt6r5gvqr6luu23igduizn7szxvusdyeu6yy7ga\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[]}}}",
    "nonce": "0x87dfe759d3b87bdeefbb7961503825eba7027adcea7bc893a754a09eae830347",
    "signature": "0x364fcbcdad5f0dced89758e1a9cb62868fdd80e3fdf582b8072045b80a71719f26dde20bddbab8efbd542ca685b666359047e38865114eaf0d7c55bea57a11911b",
    "signer": "0x5877F7e1aB261CEa57f1734519117Ed49d50c8c3",
    "userId": "549983695"
  }
}